karen kasler, gene grant, erik anderson and mark quinn. thanks a lot. >> lehrer: now, the final story in our cyber security series. "newshour" correspondent spencer michels reports on the problem of online crime. >> reporter: if you could play an a.t.m. like a slot machine, this would be hitting the jackpot. at the recent black hat cyber security convention in las vegas, computer expert barnaby jack showed how to do it. his demo was so controversial that it was delayed a year so the manufacturers could come up with a fix, but plenty of other security loopholes remain. >> i didn't give away the cookbook recipe to allow anyone to suddenly go and break into these machines, but i think the reason i showed this is i want to raise awareness of these issues. the flaws are actually in the code that the manufactures come up with. >> reporter: the problem of cyber crime is not limited to a.t.m. machines, last year, the fbi reported, more than half a billion dollars was lost to internet thievery. other estimates are much higher, but it's hard to meas